[subodhgupta1]

// Symbolic Constants
#define ROWS 7
#define COLS 4
//---------------------------------------------------------------------------

char seat[7][COLS]; //COLS+1 for terminating character.

int main()
{
  for(int i = 0; i < ROWS; ++i)
  {
    for(int j = 0; j < COLS; ++j)
    {
    seat[i][j]= j+'A';
    }
  }
  
  for(int i = 0; i < ROWS; ++i)
  {
    cout<< (i+1);
    for(int j = 0; j < COLS; ++j)
    {
     cout<< " " << seat[i][j];
    }
    cout<< endl;
  }

  //Let's take seat at position [3,2]. Since indexes start at 0 we need to
  //substract 1: position = [3-1][2-1].

  //Asking for user input
  char aisle; //for rows
  char seat; //for coulumns
  cout<< "Please enter your desired seat no. (eg, 3A): ";
  cin >> aisle >> seat;
  int row = aisle -'0' - 1; //to calculate the row
  int col = seat - 'A';    //to calculate the column
  seat[3][2] = 'X';

  cout<<endl<<"After taking a seat:"<<endl<<endl;

  for(int i = 0; i < ROWS; ++i)
  {
    for(int j = 0; j < COLS; ++j)
    {
    cout<<seat[i][j];
    }
    cout<<endl;
  }

  cout << endl << endl << endl << "Press Any Key to Continue...";
  getch ();
  return 0;
}

But I get a error "Invalid Indirection" at seat[3][2] = 'X';
and another one is same "Invalid Indirection" at cout<<seat[i][j];

So please let me know what I'm doing wrong.
Thanks